Big bang theory

The Roommate Agreement was written by Sheldon and was signed by Leonard when they first became roommates. These events were shown during a flashback. Sheldon starts mentioning paragraphs from a Friendship Agreement in the episode "The Cooper-Nowitzki Theorem". Later episodes describe it as a Roommate Agreement, and Sheldon continues to cite from it throughout the series, usually when one of the clauses is being violated.

Sheldon revamped the agreement to better favor himself in The Agreement Dissection. The new version was only agreed upon by blackmail as Sheldon had set up a false, but realistic-looking one minute timer which would then send an email to Priya's parents regarding their relationship which they didn't know about.

The Roommate Agreement was in effect for the majority of the show. However since Sheldon has moved in with Amy into Penny's old apartment, it can be assumed that the agreement is no longer in effect.

• Skynet Clause: Leonard will help Sheldon destroy an Artificial Intelligence that Sheldon has created that is taking over the earth. ("S2 Ep6")
• Body Snatchers Clause: Leonard will help Sheldon destroy someone who they know that has been replaced by an alien pod.("S2 Ep6")
• Godzilla Clause: Presumably, Leonard will help Sheldon destroy a monster that has destroyed Tokyo. ("S2 Ep6")
• Section C: Sheldon can call for an emergency meeting. ("S2 Ep10")
• Unnamed Clause: Leonard will name Sheldon as his sidekick if Leonard obtains superpowers. ("S2 Ep10")
• Section 9: The apartment's flag is a gold lion rampant on a field of azure and should never be flown upside down, unless the apartment is in distress. ("S3 Ep22")
• Section 9: If one of the roommates ever invents Time Travel, the first stop has to aim exactly five seconds after this clause of the Roommate Agreement was signed. ("S3 Ep22")
• Section 74C: Leonard must assist Sheldon if he ever becomes a robot ("S4 Ep2")
• Unnamed Clause: If Sheldon turns into a Zombie, Leonard cannot kill him.
• [Clause] : If one of them will be visiting CERN, they must take the other roommate along. ("S3 Ep15")
• Friendship Clause: Sheldon will take Leonard swimming to Bill Gates' house should he ever be invited. ("S3 Ep15")
• Unnamed Clause: The thermostat must be kept at 72 degrees at all times. ("S3 Ep22")
• Unnamed Clause: Fridays are reserved for watching Firefly due to Sheldon's assumption that it would be on for years. ("S3 Ep15")
• Unnamed Clause: Leonard must drive Sheldon to work. ("S3 Ep15")
• Section 37B: Miscellaneous Duties: Leonard is obligated to drive Sheldon to his various appointments, such as to the dentist. Leonard must also provide a "confirmation sniff" to tell if questionable dairy products are edible. ("S5 Ep15")
• Addendum J: When Sheldon showers second, any and all measures shall be taken to ensure an adequate supply of hot water. ("S4 Ep21")
• Unnamed Clause: Thursday night is Jets pizza night. ("S4 Ep21")
• Unnamed Clause: Selection of a new takeout restaurant requires a public hearing and a 60-day comment period. ("S4 Ep21")
• Clause 209: Sheldon and Leonard  both have the option of nullifying their roommate agreement, having no responsibilities or obligations toward each other, other than paying rent and sharing utilities. ("S5 Ep15")
• Unnamed Addendum: Once a year, Leonard  and Sheldon take one day to celebrate the contributions Leonard gives to Sheldon's life, both real and imaginary. Leonard does not get breakfast in bed, the right to sit in Sheldon's spot, or permission to alter the thermostat; the only thing that Leonard gets is a thank-you card. This day is called "Leonard's Day." ("S5 Ep15")
• Roommate Review: Once a year (presumably), Sheldon assesses Leonard's worthiness as a roommate. ("S6 Ep2")
• Unnamed Clause Leonard has to put up with Sheldon's craziness. ("S6 Ep15")
• Section 27, Paragraph 5: The roommate agreement, like the American flag, cannot touch the ground. ("S6 Ep15")
• Unnamed Clause Once a day Sheldon must ask how Leonard is.
• Unnamed Clause Roommates must notify each other 12 hours in advanced if they wish to have a house guest.
• Unnamed Clause Sheldon settles all ties to one-against-one.
• Unnamed Clause Any changes in furnishings have to be approved by the furnishing committee (who is Sheldon) which meets on alternate years on his spot. ("S7 Ep16")
• Section 8, Subsection C, Paragraph 4 - Coitus - Roommates shall give 12 hour notice of impending Coitus ("S3 Ep22")

The Roommate Agreement was written by Sheldon and was signed by Leonard when they first became roommates. These events were shown during a flashback. Sheldon starts mentioning paragraphs from a Friendship Agreement in the episode "The Cooper-Nowitzki Theorem". Later episodes describe it as a Roommate Agreement, and Sheldon continues to cite from it throughout the series, usually when one of the clauses is being violated.

Sheldon revamped the agreement to better favor himself in The Agreement Dissection. The new version was only agreed upon by blackmail as Sheldon had set up a false, but realistic-looking one minute timer which would then send an email to Priya's parents regarding their relationship which they didn't know about.

The Roommate Agreement was in effect for the majority of the show. However since Sheldon has moved in with Amy into Penny's old apartment, it can be assumed that the agreement is no longer in effect.

• Skynet Clause: Leonard will help Sheldon destroy an Artificial Intelligence that Sheldon has created that is taking over the earth. ("S2 Ep6")
• Body Snatchers Clause: Leonard will help Sheldon destroy someone who they know that has been replaced by an alien pod.("S2 Ep6")
• Godzilla Clause: Presumably, Leonard will help Sheldon destroy a monster that has destroyed Tokyo. ("S2 Ep6")
• Section C: Sheldon can call for an emergency meeting. ("S2 Ep10")
• Unnamed Clause: Leonard will name Sheldon as his sidekick if Leonard obtains superpowers. ("S2 Ep10")
• Section 9: The apartment's flag is a gold lion rampant on a field of azure and should never be flown upside down, unless the apartment is in distress. ("S3 Ep22")
• Section 9: If one of the roommates ever invents Time Travel, the first stop has to aim exactly five seconds after this clause of the Roommate Agreement was signed. ("S3 Ep22")
• Section 74C: Leonard must assist Sheldon if he ever becomes a robot ("S4 Ep2")
• Unnamed Clause: If Sheldon turns into a Zombie, Leonard cannot kill him.
• [Clause] : If one of them will be visiting CERN, they must take the other roommate along. ("S3 Ep15")
• Friendship Clause: Sheldon will take Leonard swimming to Bill Gates' house should he ever be invited. ("S3 Ep15")
• Unnamed Clause: The thermostat must be kept at 72 degrees at all times. ("S3 Ep22")
• Unnamed Clause: Fridays are reserved for watching Firefly due to Sheldon's assumption that it would be on for years. ("S3 Ep15")
• Unnamed Clause: Leonard must drive Sheldon to work. ("S3 Ep15")
• Section 37B: Miscellaneous Duties: Leonard is obligated to drive Sheldon to his various appointments, such as to the dentist. Leonard must also provide a "confirmation sniff" to tell if questionable dairy products are edible. ("S5 Ep15")
• Addendum J: When Sheldon showers second, any and all measures shall be taken to ensure an adequate supply of hot water. ("S4 Ep21")
• Unnamed Clause: Thursday night is Jets pizza night. ("S4 Ep21")
• Unnamed Clause: Selection of a new takeout restaurant requires a public hearing and a 60-day comment period. ("S4 Ep21")
• Clause 209: Sheldon and Leonard  both have the option of nullifying their roommate agreement, having no responsibilities or obligations toward each other, other than paying rent and sharing utilities. ("S5 Ep15")
• Unnamed Addendum: Once a year, Leonard  and Sheldon take one day to celebrate the contributions Leonard gives to Sheldon's life, both real and imaginary. Leonard does not get breakfast in bed, the right to sit in Sheldon's spot, or permission to alter the thermostat; the only thing that Leonard gets is a thank-you card. This day is called "Leonard's Day." ("S5 Ep15")
• Roommate Review: Once a year (presumably), Sheldon assesses Leonard's worthiness as a roommate. ("S6 Ep2")
• Unnamed Clause Leonard has to put up with Sheldon's craziness. ("S6 Ep15")
• Section 27, Paragraph 5: The roommate agreement, like the American flag, cannot touch the ground. ("S6 Ep15")
• Unnamed Clause Once a day Sheldon must ask how Leonard is.
• Unnamed Clause Roommates must notify each other 12 hours in advanced if they wish to have a house guest.
• Unnamed Clause Sheldon settles all ties to one-against-one.
• Unnamed Clause Any changes in furnishings have to be approved by the furnishing committee (who is Sheldon) which meets on alternate years on his spot. ("S7 Ep16")
• Section 8, Subsection C, Paragraph 4 - Coitus - Roommates shall give 12 hour notice of impending Coitus ("S3 Ep22")